JP2006122568A - Wheelchair for use in lifter for getting-in/out vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To pass through an opening part of a door with no difficulty when getting in/out a vehicle by reducing the lateral width of a wheelchair, in the wheelchair for use in a wheelchair lifter equipped in the vehicle. <P>SOLUTION: Both wheels 5 to be attached to an axle 6 when the wheelchair travels are detachably formed and, when the wheelchair is lifted by a lifter in a cabin, the both wheels 5 are detached and then attached to one side of a frame 7. One of the frames 7 disposed in the both sides of the wheelchair is formed with a wheel attachment part 9 in an upper position of the axle 6 and one of the detached wheels is attached to the attachment part. The wheel attached to the attachment part is formed with a fixing part for retaining the another wheel and the another wheel is attached to the fixing part. The both wheels 5 are thus collectively attached to one side to reduce the width of the wheelchair when being lifted by the lifter. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a lift device equipped with a lift device so that a wheelchair user such as a disabled person can easily get on and off the vehicle cabin such as a driver's cab and sit on a seat. It is about a suitable wheelchair.

  It is one important issue for the realization of a high welfare society that the disabled people work and live like the healthy people, that is, the social advancement of disabled people. In terms of driving the vehicle, development of driving aids for the physically handicapped has been promoted, such as making it possible to manually operate parts operated by feet such as pedals. For these reasons, it has become possible to operate a vehicle even for a physically handicapped person using a wheelchair who has difficulty in lower limbs.

  To drive a vehicle, it is necessary to sit on a seat in the driver's cab, but it is quite difficult for a disabled person to go up to the driver's cab. In particular, a driver's cab of a vehicle such as a large truck or tractor called a cabover vehicle is disposed above the engine, so that the floor height of the cab floor is large. A large cab-over vehicle is equipped with a step that moves up and down in the driver's cab, but it is impossible for a disabled person who uses a wheelchair to go up to the driver's cab and sit on the seat.

  A device that lifts a wheelchair up to the floor of a driver's cab using a powered lift device and can get on and off the vehicle while the wheelchair is used is known, for example, disclosed in JP-A-2003-275251. The device described in this publication is applied to a vehicle having a sliding door as shown in FIG. In the wheelchair 30, the vehicle is also placed in the driver's seat with the user on it, and is placed on a flat plate-like base 31. A lifter 32 and a drive motor 33 are arranged at the lower part of the table 31. When the wheelchair is alighted, the door 34 is fully opened and the table 31 is moved in parallel to the passenger seat side by the lifter 32. Furthermore, as shown by the dotted line, the platform 31 is lowered to the ground so that the wheelchair can travel on the ground. Further, the wheelchair 30 is configured such that its frame is folded, and the wheelchair 30 is moved to a driver's seat of the vehicle in a state where the height is lowered by folding.

  As a lift device of this type, there is also known a device that lowers a vehicle seat to near the ground and then lifts it to the floor, instead of a wheelchair, and includes a device disclosed in Japanese Patent Laid-Open No. 7-300037. In addition, there is a device that lifts and lowers a seat that has become forward facing the vehicle after it is rotated sideways. In this apparatus, the frame on which the sheet is placed is rotated 90 degrees toward the door opening when moving up and down, the frame is moved by a screw mechanism, and lowered to the ground.

  As described above, a device that can get on and off the vehicle while sitting in a wheelchair is a known device, but in order to lift the wheelchair to the cab with the vehicle facing forward, the lift device can be installed in the lateral direction of the vehicle. Therefore, it is practically difficult to adopt it in a vehicle having a high cab such as a cab-over vehicle. Also, raising and lowering the vehicle seat itself requires a special structure for the seat, and generally the vehicle seat is heavier and larger in size than a wheelchair, so it is necessary to increase the stroke of the lift device It is still difficult to use for some cab-over vehicles.

In consideration of such circumstances, the present applicant has installed a rotating shaft in the vicinity of the door of the vehicle operator's cab and installed the lift device directly on the vehicle cab in order to make the wheelchair lift device compact in a cabover vehicle with a high ground clearance. An installed boarding / exiting device was developed. In the developed apparatus, as shown in FIG. 2, a rotating shaft 20 that is rotatably supported on the floor of the cab and on the side wall of the cab is provided in the vicinity of the door opening / closing portion of the cab. Install and connect the lift device 1 to it. The lift device is provided with a hydraulic cylinder 22 connected to the mounting plate 4 of the wheelchair. When the wheelchair is lifted or lowered, the lift device 1 is turned sideways by the actuator 23, and the hydraulic cylinder 22 is moved from the door opening on the side of the vehicle. Use to raise and lower.
JP 2003-275251 A Japanese Patent Laid-Open No. 7-300037

  In general, a vehicle is designed to be as compact as possible, so that the opening of the door is also narrow. In order to raise and lower the wheelchair from this narrow opening, it is preferable that the width of the wheelchair itself is as short as possible. Particularly, in the lift device developed by the present applicant or the lift device disclosed in Patent Document 2, the lift device is rotated 90 degrees at the opening of the door. In order to rotate without trouble at this time, it is necessary to further reduce the width of the wheelchair. An object of the present invention is to reduce the lateral width of a wheelchair for a wheelchair lift device mounted on a vehicle as much as possible.

In view of the above problems, the present invention aims to reduce the width of a wheelchair when lifting and lowering with a lift device, and enables both wheels of a wheelchair to be removed and attaches both removed wheels to a frame on one side. . That is, the present invention
"A wheelchair that is mounted on a vehicle and used for a wheelchair lift device that raises and lowers the wheelchair into the passenger compartment.
The wheelchair has two detachable wheels and two frames arranged on both sides of the wheelchair, and the frame includes an axle for attaching the wheels when the wheelchair is running,
One of the frames is formed with a mounting portion for attaching one of the removed wheels above the axle, and one of the wheels is formed with a fixing portion for attaching the other removed wheel. ''
This is a wheelchair for a wheelchair lift device.

  According to a second aspect of the present invention, it is preferable that the fixing portion provided on one side of the wheel is provided near the central axis of the wheel.

As described in claim 3, the wheelchair according to the present invention is attached to a rotary shaft vertically installed in the vehicle interior, and can be rotated 90 degrees when the wheelchair is raised and lowered in the vehicle interior. Can be used for lifting devices. And when using such a lift device, as described in claim 4, the frame that is located on the door side of the vehicle when the wheelchair is housed in the vehicle interior with the mounting portion for attaching the removed wheel. It is preferable to form.

  In the wheelchair of the present invention, both wheels are detachably attached to the axle. Since both wheels of the wheelchair are for traveling, both wheels are removed when the wheelchair is lifted and lowered using a lift device mounted on the vehicle. One of the frames arranged on both sides of the wheelchair has a wheel mounting part, for example, a short shaft having the same diameter as the axle, at a position above the axle, and one of the removed wheels is attached to this mounting part. Install. In addition, a fixing portion for holding the other wheel is formed on the wheel attached to the attachment portion, and the other wheel is attached to the fixing portion. By attaching both wheels of the wheelchair together on one side in this way, the width of the wheelchair can be reduced when the lift device is raised and lowered, and the wheelchair can be passed even if the vehicle door opening is narrow. In addition, since both wheels are mounted on the wheelchair frame, wheelchair users such as disabled people can freely use both hands when moving up and down, which also hinders the operation of the remote control device that controls the lift device. I will not give you.

  As in the invention of claim 2, when the fixing portion provided on one of the wheels is provided near the central axis of the wheel and the other wheel is attached to the wheel, both wheels are arranged so as to overlap each other, The wheelchair can be transformed into a more compact one.

  As described above, in a vehicle having a high ground clearance in the cab such as a cab-over vehicle, it is desirable to use the vehicle in a lift device that can be rotated by 90 degrees when the wheelchair is moved up and down in the vehicle interior. In such a lift device, a narrow wheelchair that can pass without interfering with the opened door portion is required. When the wheelchair according to the present invention is used for this lift device, The wheelchair of the invention is particularly effective.

  And when using the lift apparatus to rotate, like the invention of Claim 4, when both wheels are attached to the frame located on the door side of the vehicle when the wheelchair is stored in the vehicle interior, the disabled or the like The wheel does not become an obstacle when moving the vehicle seat. In other words, since the seating surface of a truck or the like is usually flat, even a disabled person with a lower limb disability will not be disturbed by the wheelchair wheel, for example, from the passenger seat to the driver side Can move to the next seat.

  Hereinafter, the wheelchair of the present invention will be described based on the drawings. First, in order to facilitate understanding of the overall operation of the lifting and lowering means of the wheelchair by the lift device, FIG. 1 shows a procedure for pulling up the wheelchair of the present invention to the cab by a plurality of perspective views. In these perspective views, the door on the passenger seat side is not shown, but is kept in the fully open position by the door opening and closing device.

  A lift device 1 shown in FIG. 2 is installed on the passenger seat side of the cab-over vehicle. In FIG. 1A, the inner frame 2 of the lift device 1 and the rod of the hydraulic cylinder 22 are extended, and the wheelchair 3 is attached. The plate 4 is near the ground. As shown on the left side of FIG. 1 (a), the wheelchair 3 moves backward toward the mounting plate 4, and the fixing rod provided on the lower frame of the wheelchair 3 fits into the groove of the mounting plate 4, When in the fixed position, the fixed rod of the wheelchair 3 is locked so as not to come off the groove of the mounting plate 4.

  In the wheelchair 3 of the present invention, the wheels on both sides can be removed, and the removed wheels are attached to the horizontal frame together as shown on the left side of FIG. This work is performed in a state where the wheelchair 3 is slightly lifted from the ground by the lift device 1, that is, in the state of FIG. When this is completed, the wheelchair 3 is pulled up by the hydraulic cylinder of the lift device 1 to be in the state of FIG.

  When the wheelchair 3 is raised to the position of the floor surface of the cab, the lift device mounted with the wheelchair is rotated 90 degrees by the actuator 23 connected to the outer frame of the lift device 1, as shown in FIG. It is stored in the cab. At this time, since the wheel of the wheelchair 3 is gathered on one side, it can pass through the door opening without any trouble. Wheelchairs stored in the cab. Since both wheels are attached to the frame on the door side, it does not prevent the handicapped from moving from the wheelchair to the seat.

  The structure of the wheelchair 3 of this invention is demonstrated with reference to FIG. 3 thru | or FIG. FIG. 3 shows the wheelchair in a normal traveling state, and both wheels 5 are fitted to the axle 6 and are rotatable. The wheelchair 3 has frames 7 on both sides thereof, and each frame includes a lower frame 71 that supports a seat of a wheelchair user, an upper frame 72 for an armrest and the like, and a rear frame 73. The axle 6 is fixed to the lower frame 71 by welding or the like slightly upward so that the lower side of the attached wheel is slightly expanded to ensure stability during traveling. Further, a hole 61 in which an internal thread is formed is provided at the end of the axle 6.

  As shown in the upper drawing of FIG. 3, the wheel 5 is attached by fitting the axle 6 into a hole penetrating the hub portion 51 of the wheel 5, and a lock member 8 provided with a male screw portion in the hole 61 of the axle 6. The wheel 5 is positioned in the axial direction by the end face of the lock member 8. Accordingly, when the lock member 8 is removed, the wheel 5 can be removed from the axle 6.

  The wheelchair 3 of the present invention is provided with an attachment shaft 9 on the upper frame 72 as an attachment portion for attaching the removed wheel 5. The attachment shaft 9 is a short shaft having the same diameter as the axle 6, and in some cases, a material that does not form the hole 61 of the axle 6 may be welded to the upper frame 72. Further, as shown in FIG. 4, a bracket 10 is attached to one wheel 5 as a fixing portion to which the other removed wheel is attached. The bracket 10 is a member in which a short shaft 11 fitted into a hole penetrating the hub portion 51 of the wheel 5 is fixed upward as shown in the right view of FIG. 4. The hub portion 51 of the wheel 5 is sandwiched between them, and the cap 12 is bolted to be fixed to the hub portion 51 at the center of the wheel 5.

  When the wheelchair 3 is lifted into the passenger compartment by the lift device 1, both wheels 5 are removed at the position shown in FIG. 1 (b), and first, the wheel to which the bracket 10 is attached is attached to the attachment shaft 9. Next, when the hub portion of the other wheel is fitted and fixed to the short shaft 11 of the bracket 10, both the wheels 5 are attached to the frame on one side of the wheelchair 3, as shown in FIG. The width of the wheelchair 3 at this time is considerably reduced compared to the width when traveling with the wheels 5 attached on both sides, and avoiding interference with the vehicle door when the lift device 1 is turned 90 degrees. Can do. In addition, three rods 13 are fixed to the lower part of the frame of the wheelchair 3 at the center front and the left and right rear, and when the wheelchair 3 is raised and lowered, these rods 13 are formed on the mounting plate 4. Each enters the groove 41 (see FIG. 2). The rod 14 that has entered the central groove 41 is automatically locked when it reaches a fixed position, so that the wheelchair 3 placed on the mounting plate 4 does not come off.

  As described above in detail, in order to reduce the width of the wheelchair used in the wheelchair lift device installed in the vehicle, both wheels of the wheelchair can be removed, and both the removed wheels are attached to a frame on one side. Therefore, the wheelchair lift device is not limited to the lift device according to the embodiment that is rotated sideways when moving up and down, and the present invention can be used as a wheelchair for other lift devices. It is obvious that the means for attaching the wheel to the frame on one side can be variously modified, for example, by holding the spoke portion instead of fixing the hub portion.

It is a perspective view which shows the operation | movement procedure of the lift apparatus using the wheelchair of this invention. It is a perspective view which shows the outline of a lifting apparatus. It is a figure which shows the state at the time of driving | running | working of the wheelchair of this invention. It is a figure which shows the wheel which provided the fixing | fixed part of the wheelchair of this invention. It is a figure which shows the state at the time of raising / lowering of the wheelchair of this invention. 1 shows a conventional wheelchair lift device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lift apparatus 3 Wheelchair 4 Mounting plate 41 Groove 5 Wheel 51 Hub part 6 Axle 7 Frame 71 Upper frame 72 Lower frame 9 Mounting shaft (mounting part)
10 Bracket (fixed part)

Claims (4)

A wheelchair (3) used in a wheelchair lift device (1) that is mounted on a vehicle and lifts the wheelchair into the passenger compartment,
The wheelchair (3) has two removable wheels (5) and two frames (7) arranged on both sides of the wheelchair, and the frame (7) An axle (6) for mounting the wheel (5);
A mounting portion (9) for attaching one of the removed wheels (5) is formed on one of the frames (7) above the axle (6), and one of the wheels is removed. A wheelchair for a wheelchair lift device, characterized in that a fixing portion (10) for mounting the other wheel is formed. The wheelchair for a wheelchair lift device according to claim 1, wherein the fixing portion (10) provided on one side of the wheel is provided near the central axis of the wheel. The wheelchair lift device (1) for raising and lowering the wheelchair is attached to a rotary shaft (20) installed in a vertical direction in the passenger compartment, and is capable of rotating 90 degrees when raising and lowering the wheelchair in the passenger compartment. Or a wheelchair for a wheelchair lift device according to claim 2. The wheelchair lift device according to claim 3, wherein the attachment portion (9) for attaching the removed wheel formed on one side of the frame is formed on a frame located on the door side of the vehicle when the wheelchair is stored in the vehicle interior. Wheelchair.

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